File Upload fails for large files


I am using mongrel with nginx and I am facing problem when I try to
upload a large file. After googling about this, I came to know that I
need to configure nginx.conf file by setting ‘client_max_body_size’ to
a value of desired maximum file size. I did that but still it does not
seem to work. Files above 200 KB do not get uploaded. I also get a
weird error about sockets (Given below the nginx.conf file)

What am I doing wrong? Please help.

My nginx.conf lokos like this:

user postgres ;
worker_processes 2;

error_log /var/www/webapps/FileSharing/log/error.log notice;
pid /var/www/webapps/FileSharing/log/;

events {
worker_connections 1024;

http {
include mime.types;
default_type application/octet-stream;

# no sendfile on OSX uncomment
#this if your on linux or bsd
#sendfile        on;
tcp_nopush     on;

keepalive_timeout  65;
tcp_nodelay        on;

upstream mongrel {

gzip on;
gzip_min_length  1100;
gzip_buffers     4 8k;
gzip_types       text/plain;

server {
    listen       80;
    access_log /var/www/webapps/FileSharing/log/access.log;
    error_log /var/www/webapps/FileSharing/log/error.log;
    root /var/www/webapps/FileSharing/public;
    access_log  on;
    rewrite_log on;

#client_max_body_size 1048576k;
client_max_body_size 1024M;
client_body_buffer_size 512k;
client_header_buffer_size 1048576k;

    location /ui
      root /var/www/webapps/FileSharing/public;

    location ~ ^/$ {
      if (-f /index.html){
        rewrite (.*) /index.html last;
       proxy_pass  http://mongrel;

    location / {
      if (!-f $request_filename.html) {
        proxy_pass  http://mongrel;
      rewrite (.*) $1.html last;

    location ~ .html {
       root /Users/ez/nginx/public;

    location ~* ^.+\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|

doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|js|mov)$ {
access_log off;
expires 30d;

  location / {

     # needed to forward user's IP address to rails
     proxy_set_header  X-Real-IP  $remote_addr;

     # needed for HTTPS
    #proxy_set_header X_FORWARDED_PROTO https;
    #proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect false;
    #proxy_max_temp_file_size 1048576k;
    proxy_max_temp_file_size 1024M;

    # If the file exists as a static file serve it directly

# running all the other rewite tests on it
if (-f $request_filename) {

   # this is the meat of the rails page caching config
   # it adds .html to the end of the url and then checks
   # the filesystem for that file. If it exists, then we
   # rewite the url to have explicit .html on the end
   # and then send it on its way to the next config rule.
   # if there is no file on the fs then it sets all the
   # necessary headers and proxies to our upstream mongrels
   if (-f $request_filename.html) {
    rewrite (.*) $1.html break;

  if (!-f $request_filename) {
    proxy_pass http://mongrel;
 error_page   500 502 503 504  /500.html;
location = /500.html {
  root   /var/www/webapps/FileSharing/public;




Thu Nov 20 10:47:37 +0530 2008: Error reading HTTP body:
#<RuntimeError: Socket read returned insufficient data: 5672>
http_request.rb:107:in read_socket' /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/ http_request.rb:77:inread_body’
http_request.rb:55:in initialize' /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb: 149:innew’
149:in process_client' /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb: 285:inrun’
285:in initialize' /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb: 285:innew’
285:in run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb: 268:ininitialize’
268:in new' /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb: 268:inrun’
configurator.rb:282:in run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/ configurator.rb:281:ineach’
configurator.rb:281:in run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails: 128:inrun’
command.rb:212:in run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281 /usr/local/bin/mongrel_rails:19:inload’